查询词典 regularly connected complex

X-ray crystal diffraction reveals that complex 1 displays one-dimensional double chain structure; complex 2 is a two-dimensional supramolecule formed by hydrogen bonds.

其中，配合物1呈一维链状结构；配合物2是一个通过氢键作用而形成的二维超分子。

The initial water concentration of the mixed solvent is an extremely important factor.Due to the complex double effects of water on the reaction, with the change of the initial water concentration,the catalytic activity shows complex changing trend.

混合溶剂的初始含水量是一个极为重要的因素，由于水对反应复杂的双重影响，催化剂的活性随初始含水量的变化呈现出复杂的变化趋势。

Double Density Dual-Tree Complex Wavelet Transform integrates the advantages of double density wavelet, dual tree wavelet and complex wavelet. It has translation invariability and improved directionality. When it is introduced to image fusion, the characteristics of original images are extracted better and more information for fusion is obtained.

摘要双密度双树复数小波变换综合了双密度小波、双树小波和复数小波的优点，具有平移不变性以及良好的方向性，将其引入图像融合能够更好地提取原始图像的特征，为融合图像提供更多的信息。

A series of double metal cyanide complex catalysts were prepared in two different methods by using β-cyclodextrin, PEG-1000 or Tween-60 as an additional complex ligand respectively, and the effects of different kinds of additives and preparation methods on the appearance, particle diameters, crystal constitution and activity of DMC catalysts were also studied.

分别以PEG-1000、β-环糊精和吐温-60等为助络合剂，采用不同工艺方法制备了具有不同结构的双金属氰化物络合物催化剂，研究了不同助络合剂和不同制备方法对DMC催化剂的形貌、粒径、晶型结构和催化活性的影响。

Based on complex single piezoelectric layer's film bulk acoustic resonator, a new kind of complex double piezoelectric layers' FBAR is proposed. This structure can greatly improves the flexibility of the selection of piezoelectric materials for FBAR.

在复合单压电层薄膜体声波谐振器的基础上，提出了一种新型的复合双压电层FBAR，它可以大大提高压电材料选择的灵活性。

In order to overcome the aliasing phenomenon commonly existing in real contourlet transform image denoising, some characters of complex contourlet transform whose structure is a cascading of dual tree complex wavelet and directional filter banks are discussed. It is proved that the transform performs well at division and restraining ability under white Gaussian noise condition. Then, an image denoising algorithm was proposed based on the transform.

为了克服实轮廓波图像消噪后广泛存在的混叠现象，研究了基于双树复小波级联方向滤波器架构的复轮廓波变换图像消噪的若干性质，证明了对于高斯白噪声图像，该变换具有更好的分割能力和抑制能力，并在此基础上提出了一种基于该变换的图像消噪算法。

In this paper, a speckle reduction method for SAR images based on Dual Tree Complex Wavelet Transform is proposed. It first presumes the probability distribution function for complex wavelet coefficients of the original nature image, and then applies MAP theory to estimate coefficients from the noisy wavelet coefficients. Filtered image can be derived after inversed DTCWT.

该方法首先对无噪声污染图像的复数小波系数的统计概率分布进行建模；然后利用此先验概率模型，采用最大后验概率方法从含噪小波系数中估计出无噪声污染的小波系数：最后经重构得到滤波后的图像。

An optional 32-bit NCO/mixer in complex mode provides frequency upconversion and the dual DAC output produces a complex Hilbert Transform pair.

TI 公司的DAC56883G是高性能的16位800MSPS双路数模转换器，非常适合3G和4G通信系统的应用。

This paper describes the necessity and development of infrared / millimeter wave dual mode guidance technology, explores the principle and feature of IR /MMW dual mode noncommon aperture complex guidance, common aperture complex guidance and IR / MMW dual mode receptor of energy.

介绍了红外/毫米波双模制导技术的必要性及发展情况，探讨了红外/毫米波双模分口径复合制导、共口径复合制导和红外/毫米波双模集能器的工作原理及特点。

A supervised texture image segmentation algorithm based on dual tree complex wavelet transformand Markov random fieldmodel is proposed. The algorithm consists of two steps. First, the complex transform coefficients are statistically modelled

基于对偶树复小波和马尔可夫随机场模型提出了一种监督纹理图像分割算法，算法包括两个步骤，首先对复小波变换系数进行较为精确的建模，提取其一阶统计信息作为纹理特征，综合多个尺度的信息，基于极大似然标准进行初始分割

Molecular Distillation is a kind of high vacuum distillation method, which is suitable for the separation of high boiling, heat sensitivity and viscidity products.

分子蒸馏技术是一种在高真空条件下进行的连续蒸馏过程，适合于分离高沸点、热敏性及具有生物活性的混合物。

They are to the Noughties what yuppies were to the Eighties .

那在六十年代是时髦的，但在八十年代肯定是过时了